What is the best time for citrus fertilization?

Citrus is a kind of famous fruit in our country, which is widely distributed in our country at present, and it is generally listed in winter. Nowadays, many people like to grow oranges, but fertilization is a crucial step in the process of growing oranges. There are some skills in the choice of time and fertilizer when fertilizing.

The best time to fertilize citrus

The time of fertilization has many stages, which can not be said to be the best, and it is very important for the results to increase production and quality, from the base fertilizer in the early spring to the top fertilizer in the beginning of spring, to the fertilizer for protecting and stabilizing fruit, and then to the fertilizer for strong fruit and promoting shoot, all have time, and should make corresponding changes according to the change of seasonal air temperature every year, according to the strength of trees, and make corresponding adjustments according to the types of fertilization for many years.

What are the special fertilizers for citrus?

Citrus special fertilizer can choose all-element compound fertilizer is better, nutrient elements are more abundant, plant growth is better and more prosperous, topdressing phosphorus and potassium fertilizer is better, can promote plant flowering and fruiting more.

Fertilization methods of Citrus

1. Ring ditch application, strip ditch application and other methods can be adopted. The farm manure should be fully fermented and ripened; the one-time application of chemical fertilizer should not be excessive and should be applied diligently. In addition, the main root layer of adult trees is distributed in the deep 40~60cm of the soil, and the main absorbing root is the fibrous root tip-new root, which should be used as the basis when determining the depth and position of fertilization.

2. From November to December. The specific method is to apply once every other year, staggered between plants to dig radial or semi-circular or circular fertilization ditch from the crown dripping line, and be careful not to cut off the big root when digging. The amount of fertilizer application should be increased or decreased according to the age and growth of the tree. Combined with root pruning, each plant was put into weed green manure at the bottom of the ditch and then applied base fertilizer, which was fully mixed with part of the soil in the fertilization ditch. Fruiting trees should apply more potassium fertilizers such as plant ash fertilizer and potassium sulfate to facilitate flowering and fruiting.

3. The amount of fertilizer applied. The amount of fertilizer applied in the whole year should be 100kg with pure nitrogen 0.6kg-0.8kg, and the ratio of nitrogen, phosphorus and potassium should be 1: 1: 0.4: 1. According to the yield of 2000 kg per mu, 12 kg of pure nitrogen, 5 kg of phosphorus and 12 kg of potassium should be applied per mu.

Topdressing technology of citrus

Based on quick-acting chemical fertilizer, it can be applied with rotten farm and livestock manure water, oil and low water under certain conditions.

The main results are as follows: 1. Nitrogen fertilizer (urea) is the main fertilizer at young age, and then high-quality compound fertilizer is applied properly, about 0.1 kg per plant. Specifically, according to the initial period and rapid extension period (middle stage) of the fruit tree, dig a hole ditch at the crown drip line and cover it with soil after each fertilization. It is necessary to keep the soil moist during fertilization and 7 days after fertilization, less for those with strong growth and more for those with weak growth.

2. The topdressing of fruiting trees is to apply spring bud fertilizer from late January to early February for 15 days before budding, mainly nitrogen fertilizer (0.2 kg per plant), combined with phosphorus and potassium fertilizer (0.1 kg per plant) to promote spring shoot emergence and flower bud differentiation. At the end of April and the beginning of May, the foliar fertilizer of stabilizing fruit was applied once every 7 days after flowering at the end of April and the beginning of May, mainly nitrogen and phosphorus fertilizer (1 kg of potassium dihydrogen phosphate per mu was sprayed with 0.2% concentration), in order to increase the fruit setting rate. After the second physiological fruit drop stopped at the end of June and the beginning of July, strong fruit fertilizer was applied, mainly nitrogen and potassium, and about 1 kg of high quality compound fertilizer and lettuce were applied to each plant to improve fruit quality.

There is a lot of time for citrus fertilization, such as the beginning of spring, fruit and so on. There are also many choices of fertilizer, so you can consult more on the market. The methods of citrus fertilization include ring ditch application, strip furrow fertilization and so on, which can be chosen according to their own actual situation.